diff --git a/src/g_ai.c b/src/g_ai.c
index db806ed..b43fd01 100644
--- a/src/g_ai.c
+++ b/src/g_ai.c
@@ -835,8 +835,11 @@ ai_run_melee(edict_t *self)
 
 	if (FacingIdeal(self))
 	{
-		self->monsterinfo.melee(self);
-		self->monsterinfo.attack_state = AS_STRAIGHT;
+		if (self->monsterinfo.melee)
+		{
+			self->monsterinfo.melee(self);
+			self->monsterinfo.attack_state = AS_STRAIGHT;
+		}
 	}
 }
 
@@ -857,8 +860,10 @@ ai_run_missile(edict_t *self)
 
 	if (FacingIdeal(self))
 	{
-		self->monsterinfo.attack(self);
-		self->monsterinfo.attack_state = AS_STRAIGHT;
+		if (self->monsterinfo.attack) {
+			self->monsterinfo.attack(self);
+			self->monsterinfo.attack_state = AS_STRAIGHT;
+		}
 	}
 }